During Jesus’ earthly ministry, the disciples were always concerned with where they’d be ruling in the coming Kingdom, but Jesus told them that they had it all wrong. Here is the Living God, Jesus Christ; the omnipotent God, telling them that:
“even the Son of Man came not to be served but to serve, and to give his life as a ransom for many.” Mark 10:45
They thought like most of the world thinks; the greatest person is the one with the most servants, but Jesus flips that on its head, saying that:
“whoever would be first among you must be slave of all.” Mark 10:44
The Apostle Peter could not be clearer about how Jesus Christ brings salvation to the sinner. Peter says,
“that you were ransomed from the futile ways inherited from your forefathers, not with perishable things such as silver or gold.” 1 Peter 1:18
All the wealth in the universe would not be sufficient to redeem even one sinner. It took the shed blood of Jesus to redeem us. There was absolutely no other way.
“the precious blood of Christ, like that of a lamb without blemish or spot.” 1 Peter 1:19
“And there is salvation in no one else, for there is no other name under heaven given among men by which we must be saved.” Acts 4:12
“Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me. If you had known me, you would have known my Father also. From now on you do know him and have seen him.” John 14:6-7

“And just as it is appointed for man to die once, and after that comes judgment, so Christ, having been offered once to bear the sins of many, will appear a second time, not to deal with sin but to save those who are eagerly waiting for him.” Hebrews 9:27-28.
Salvation was achieved by Jesus shedding His blood at His first coming to earth but at His second coming Jesus completes the task by resurrecting the dead Saints and the rapture of those that are alive with glorious new bodies.
“But our citizenship is in heaven, and from it, we await a Saviour, the Lord Jesus Christ, who will transform our lowly body to be like his glorious body, by the power that enables him even to subject all things to himself.” Philippians 3:20-21